Daniel e



(fIQModeL) D; E. ROSE.

Ama l gamator.

Patented April 26,18 '1.

Inven for N PEYERSAFHOTD-LITHOGKAFHER, WASHKNGTON. D C.

UNITED STATES PATENT OFFICE.

DANIEL n. nosn, or BROOKLYN, NEW YORK.

AMALGAMATO R.

SPECIFICATION forming part of Letters Patent No. 240,548, dated April26, 1881. Application filed December 1, 1880. (No model.)

To all whom it may concern:

Be it known that I, DANIEL EUGENE Rose, of Brooklyn, in the county ofKings and State of New York, have invented a new and Im provedAmalgamator, of which the following is a specification.

Figure 1 is a sectional side elevation of my improved amalgamator. Fig.2 is a horizontal section of a modification thereof. Fig. 3 is avertical cross-section of said modification. Figs. 4 and 5 are verticalsections of other modifications, and Fig. 6 is a side view of the Centers the kettle, the proper plan is to compact it or pack it tightly,so as to preventair from entering the lower end of the kettle, andprevent the lead from finding its way out of the kettle into theore-supply channel.

My present invention embraces the following principal feature, in thatit consists in so constructing the apparatus that the ore will be packedinto a compact mass, so to say, on

its entrance tgthe kettle of lead, and as this;

compacted mass-ispushed fbnward by the mechanism which I shall describe,part of it will reach the molten lead in the kettle, and will at onceexpose its auriferousand argentiferous constituentsto the-iamalgamatingaction of the lead, whereas the other particles of the ore will float ontop of the lead, whence they can be removed by suitable appliances.

In the accompanying drawings, the letter A represents a suitable kettlefor containing molten lead. This kettle is placed into' a suitablefurnace, B, in which furnace a fire is started for keeping the lead inthe kettle in molten condition. The lower part of the kettle A has a'supply=opening, a, which is of slightly-tapering form, as shown in Fig.1, being larger at its cuter than at its inner end. To this funnel endof the mouth a is clamped, by means of a suitable ring, 0, theore-supply tube D, that extends from the ore-hopper E.

Within the tubeD is a screw, F, for gradually forcing the ore containingthe gold or silver into the kettle, and as the screw is revolved bysuitable mechanism the ore will become compacted into the narrowingmouth a of the kettle, and will there pack and form a cushion to preventair from reaching the lead through the. hopper E, pipe D, and mouth a.The continued rotation of the screw F forces the packed ore graduallyinto the kettle, and causes it to be exposed to the amalgamating andcarrying effects of the molten lead, so that the silver or gold actuallycontained in the orc will be retained by the lead, whereas theimpurities will float on top ofit.

For some kinds of ore the screw F would not be a desirable means offeeding the same forward, and in such cases I substitute for the screweither reciprocating pusher-rods G, such as are shown in Figs-2 and 3,or a rotating bladed disk, H, such as is shown in Fig. 4, or anoscillating cam, I, such as is shown in Fig. 5. In fact, any mechanismfor pushing the quartz or ore that enters the tube D from the hopper Eforward toward the contracting mouth of the kettle is by me regarded asthe equivalent of the screw F.

I claim 1. In an amalgamator, the combination of the kettle A, havingthe flaring mouth. a, which is larger at its outer than its inner end,with the ore-supply pipe D, and with mechanism for pushing the ore intothe mouth a, and compacting it therein, substantially as specified.

2. The combination of the kettle A and furnace B, said kettle having theflaring mouth a, which is smallest near said kettle, with the ore-supplypipe D, screw F, and clamping device O, all arranged for compacting theore in the mouth a, substantially as specified.

DANIEL EUGENE ROSE.

Witnesses:

WILLY G. E. SCHULTZ, WILLIAM H. 0. SMITH.

